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Chen XS, Han R, Liu YT, Huang W, Wang Q, Xiong X, Zhang Y, Zhao JG, Li SH, Li XJ, Yang WL. Comparative analysis of primate and pig cells reveals primate-specific PINK1 expression and phosphorylation. Zool Res 2024; 45:242-252. [PMID: 38287905 PMCID: PMC11017073 DOI: 10.24272/j.issn.2095-8137.2023.241] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2023] [Accepted: 09/12/2023] [Indexed: 01/31/2024] Open
Abstract
PTEN-induced putative kinase 1 (PINK1), a mitochondrial kinase that phosphorylates Parkin and other proteins, plays a crucial role in mitophagy and protection against neurodegeneration. Mutations in PINK1 and Parkin can lead to loss of function and early onset Parkinson's disease. However, there is a lack of strong in vivo evidence in rodent models to support the theory that loss of PINK1 affects mitophagy and induces neurodegeneration. Additionally, PINK1 knockout pigs ( Sus scrofa) do not appear to exhibit neurodegeneration. In our recent work involving non-human primates, we found that PINK1 is selectively expressed in primate brains, while absent in rodent brains. To extend this to other species, we used multiple antibodies to examine the expression of PINK1 in pig tissues. In contrast to tissues from cynomolgus monkeys ( Macaca fascicularis), our data did not convincingly demonstrate detectable PINK1 expression in pig tissues. Knockdown of PINK1 in cultured pig cells did not result in altered Parkin and BAD phosphorylation, as observed in cultured monkey cells. A comparison of monkey and pig striatum revealed more PINK1-phosphorylated substrates in the monkey brain. Consistently, PINK1 knockout in pigs did not lead to obvious changes in the phosphorylation of Parkin and BAD. These findings provide new evidence that PINK1 expression is specific to primates, underscoring the importance of non-human primates in investigating PINK1 function and pathology related to PINK1 deficiency.
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Affiliation(s)
- Xiu-Sheng Chen
- Guangdong Key Laboratory of Non-human Primate Research, Key Laboratory of CNS Regeneration (Ministry of Education), GHM Institute of CNS Regeneration, Jinan University, Guangzhou, Guangdong 510632, China
| | - Rui Han
- Guangdong Key Laboratory of Non-human Primate Research, Key Laboratory of CNS Regeneration (Ministry of Education), GHM Institute of CNS Regeneration, Jinan University, Guangzhou, Guangdong 510632, China
| | - Yan-Ting Liu
- Guangdong Key Laboratory of Non-human Primate Research, Key Laboratory of CNS Regeneration (Ministry of Education), GHM Institute of CNS Regeneration, Jinan University, Guangzhou, Guangdong 510632, China
| | - Wei Huang
- Guangdong Key Laboratory of Non-human Primate Research, Key Laboratory of CNS Regeneration (Ministry of Education), GHM Institute of CNS Regeneration, Jinan University, Guangzhou, Guangdong 510632, China
| | - Qi Wang
- Guangdong Key Laboratory of Non-human Primate Research, Key Laboratory of CNS Regeneration (Ministry of Education), GHM Institute of CNS Regeneration, Jinan University, Guangzhou, Guangdong 510632, China
| | - Xin Xiong
- Guangdong Key Laboratory of Non-human Primate Research, Key Laboratory of CNS Regeneration (Ministry of Education), GHM Institute of CNS Regeneration, Jinan University, Guangzhou, Guangdong 510632, China
| | - Ying Zhang
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China
- Beijing Institute for Stem Cell and Regenerative Medicine, Beijing 100101, China
| | - Jian-Guo Zhao
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China
- Beijing Institute for Stem Cell and Regenerative Medicine, Beijing 100101, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Shi-Hua Li
- Guangdong Key Laboratory of Non-human Primate Research, Key Laboratory of CNS Regeneration (Ministry of Education), GHM Institute of CNS Regeneration, Jinan University, Guangzhou, Guangdong 510632, China
| | - Xiao-Jiang Li
- Guangdong Key Laboratory of Non-human Primate Research, Key Laboratory of CNS Regeneration (Ministry of Education), GHM Institute of CNS Regeneration, Jinan University, Guangzhou, Guangdong 510632, China
| | - Wei-Li Yang
- Guangdong Key Laboratory of Non-human Primate Research, Key Laboratory of CNS Regeneration (Ministry of Education), GHM Institute of CNS Regeneration, Jinan University, Guangzhou, Guangdong 510632, China. E-mail:
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Wang X, Liu TX, Zhang Y, Xu LW, Yuan SL, Cui AL, Guo WW, Wang YF, Yang SM, Zhao JG. Genetically modified pigs: Emerging animal models for hereditary hearing loss. Zool Res 2024; 45:284-291. [PMID: 38485498 PMCID: PMC11017082 DOI: 10.24272/j.issn.2095-8137.2023.231] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2023] [Accepted: 12/05/2023] [Indexed: 03/19/2024] Open
Abstract
Hereditary hearing loss (HHL), a genetic disorder that impairs auditory function, significantly affects quality of life and incurs substantial economic losses for society. To investigate the underlying causes of HHL and evaluate therapeutic outcomes, appropriate animal models are necessary. Pigs have been extensively used as valuable large animal models in biomedical research. In this review, we highlight the advantages of pig models in terms of ear anatomy, inner ear morphology, and electrophysiological characteristics, as well as recent advancements in the development of distinct genetically modified porcine models of hearing loss. Additionally, we discuss the prospects, challenges, and recommendations regarding the use pig models in HHL research. Overall, this review provides insights and perspectives for future studies on HHL using porcine models.
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Affiliation(s)
- Xiao Wang
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China
- Institute for Stem Cell and Regeneration, Chinese Academy of Sciences, Beijing 100101, China
- Beijing Institute for Stem Cell and Regenerative Medicine, Beijing 100101, China
- State Key Laboratory of Animal Biotech Breeding, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, 100193, China
| | - Tian-Xia Liu
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China
- Savaid Medical School, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Ying Zhang
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China
- Institute for Stem Cell and Regeneration, Chinese Academy of Sciences, Beijing 100101, China
- Beijing Institute for Stem Cell and Regenerative Medicine, Beijing 100101, China
| | - Liang-Wei Xu
- Department of Otolaryngology-Head and Neck Surgery, Institute of Otolaryngology, Chinese PLA General Hospital, Beijing 100853, China
| | - Shuo-Long Yuan
- Department of Otolaryngology-Head and Neck Surgery, Institute of Otolaryngology, Chinese PLA General Hospital, Beijing 100853, China
| | - A-Long Cui
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China
- Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui 230022, China
| | - Wei-Wei Guo
- Department of Otolaryngology-Head and Neck Surgery, Institute of Otolaryngology, Chinese PLA General Hospital, Beijing 100853, China
| | - Yan-Fang Wang
- State Key Laboratory of Animal Biotech Breeding, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, 100193, China
| | - Shi-Ming Yang
- Department of Otolaryngology-Head and Neck Surgery, Institute of Otolaryngology, Chinese PLA General Hospital, Beijing 100853, China. E-mail:
| | - Jian-Guo Zhao
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China
- Savaid Medical School, University of Chinese Academy of Sciences, Beijing 100049, China
- Institute for Stem Cell and Regeneration, Chinese Academy of Sciences, Beijing 100101, China
- Beijing Institute for Stem Cell and Regenerative Medicine, Beijing 100101, China. E-mail:
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Liang R, Liu D, Zhao JG, Gao Q, Zhai ZG. [Advances in the use of neuromuscular electrical stimulation in the prevention of venous thromboembolism]. Zhonghua Jie He He Hu Xi Za Zhi 2024; 47:269-274. [PMID: 38448181 DOI: 10.3760/cma.j.cn112147-20231017-00243] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 03/08/2024]
Abstract
Pharmacologic prophylaxis is the most commonly used prophylaxis for venous thromboembolism (VTE), but the pharmacologic prophylaxis is limited in patients at high risk of bleeding. Mechanical prophylaxis alone or in combination is an important method of VTE prophylaxis in patients at high risk of bleeding, but the current mainstream mechanical prophylaxis, which includes graded compression stockings, intermittent inflatable compression pumps and plantar venous compression pumps, has some limitations, leading to discomfort for patients wearing them due to the large contact area, and even affecting ability to perform daily activities. Many clinical studies have found that NMES combined with pharmacological prophylaxis has better efficacy and safety than pharmacological prophylaxis alone in preventing VTE in medical and surgical patients, and the preventive effect of NMES alone is not inferior to other mechanical prophylaxis. Besides, it also has the advantages of ease of wear and patient compliance. Currently, clinicians have limited experience and knowledge of NMES. We aimed to present the rationale, progress in clinical research and future perspective of NMES in VTE prophylaxis.
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Affiliation(s)
- R Liang
- Beijing University of Chinese Medicine China-Japan Friendship School of Clinical Medicine, Department of Pulmonary and Critical Care Medicine, Center of Respiratory Medicine, China-Japan Friendship Hospital, National Center for Respiratory Medicine Institute of Respiratory Medicine, Chinese Academy of Medical Sciences, National Clinical Research Center for Respiratory Diseases, Beijing 100029, China
| | - D Liu
- Peking University China-Japan Friendship School of Clinical Medicine, Department of Pulmonary and Critical Care Medicine, Center of Respiratory Medicine, China-Japan Friendship Hospital, National Center for Respiratory Medicine Institute of Respiratory Medicine, Chinese Academy of Medical Sciences, National Clinical Research Center for Respiratory Diseases, Beijing 100029, China
| | - J G Zhao
- Department of Pulmonary and Critical Care Medicine, Center of Respiratory Medicine, China-Japan Friendship Hospital, National Center for Respiratory Medicine Institute of Respiratory Medicine, Chinese Academy of Medical Sciences, National Clinical Research Center for Respiratory Diseases, Beijing 100029, China
| | - Q Gao
- Department of Pulmonary and Critical Care Medicine, Center of Respiratory Medicine, China-Japan Friendship Hospital, National Center for Respiratory Medicine Institute of Respiratory Medicine, Chinese Academy of Medical Sciences, National Clinical Research Center for Respiratory Diseases, Beijing 100029, China
| | - Z G Zhai
- Department of Pulmonary and Critical Care Medicine, Center of Respiratory Medicine, China-Japan Friendship Hospital, National Center for Respiratory Medicine Institute of Respiratory Medicine, Chinese Academy of Medical Sciences, National Clinical Research Center for Respiratory Diseases, Beijing 100029, China
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Zhang RY, Zhu BF, Zhao JG, Zhao L, Wang LK. Electroacupuncture Stimulation Alleviates Inflammatory Pain in Male Rats by Suppressing Oxidative Stress. Physiol Res 2023; 72:657-667. [PMID: 38015764 PMCID: PMC10751055 DOI: 10.33549/physiolres.934965] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2022] [Accepted: 06/13/2023] [Indexed: 01/05/2024] Open
Abstract
In the present study, we focused on whether the analgesic effect of Electroacupuncture (EA) is related to the regulation of oxidative stress. We established a chronic inflammatory pain model in male rats by a single injection of complete Freund's adjuvant (CFA) and then treated the animals with daily EA stimulation at the site of "zusanli". The analgesic effect of EA was evaluated by measuring the paw withdrawal threshold (PWT) when rats received mechanical and thermal pain stimulation. The levels of inflammation-related molecules and oxidative stress-related markers in the spinal cord were measured by western blotting or ELISA kits. EA stimulation and antioxidants effectively increased the PWT in CFA rats. Co-treatment of CFA rats with the ROS donor t-butyl hydroperoxide (t-BOOH) further decreased the PWT and weakened the analgesic effect of EA. EA treatment inhibited inflammation and oxidative stress, as shown by decreased levels of tumor necrosis factor-alpha (TNF-alpha), interleukin-1beta (IL-1beta), IL-6, and MDA and increased activity of SOD and catalase. Moreover, EA reduced the expression of p-p38, p-ERK, and p-p65 and simultaneously downregulated the expression of TRPV1 and TRPV4 in CFA rats. In an in vitro study, direct stimulation with t-BOOH to the C6 cells increased the production of TNF-alpha, IL-1beta, IL-6, activated p38, ERK, and p65 and up-regulated the expression of TRPV1 and TRPV4, and these effects could be prevented by the ROS scavenger PBN. Taken together, our data indicate that the inhibition of oxidative stress and the generation of ROS contribute to the analgesic effect of EA in male CFA rats.
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Affiliation(s)
- R Y Zhang
- Department of Pain Management, Anhui Medical University, Hospital of Hefei, Hefei, People's Republic of China.
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Guo YL, Guo JX, Zhao JG, Bao YN. Analysis of the efficacy and factors influencing survival of adjuvant radiotherapy for stage II-III biliary tract carcinoma. World J Surg Oncol 2023; 21:339. [PMID: 37880729 PMCID: PMC10601315 DOI: 10.1186/s12957-023-03209-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Accepted: 10/03/2023] [Indexed: 10/27/2023] Open
Abstract
BACKGROUND To determine the efficacy of adjuvant radiotherapy for stage II-III biliary tract carcinoma. METHODS We retrospectively analyzed the data of 37 patients who underwent radical resection of biliary tract carcinomas at the Affiliated Hospital of Inner Mongolia Medical University between 2016 and 2020. We analyzed survival differences between patients who did (n = 17) and did not (n = 20) receive postoperative adjuvant radiotherapy by using Kaplan-Meier analysis. The log-rank test and Cox univariate analysis were used. The Cox proportional risk regression model was used for the multifactorial analysis of factors influencing prognosis. RESULTS The median survival time (28.9 vs. 14.5 months) and the 1-year (82.40% vs. 55.0%) and 2-year survival rates (58.8% vs. 25.0%) were significantly higher among patients who received adjuvant radiotherapy than among those who did not (χ2 = 6.381, p = 0.012). Multifactorial analysis showed that pathological tumor type (p = 0.004), disease stage (p = 0.021), and adjuvant radiotherapy (p = 0.001) were independent prognostic factors in biliary tract carcinoma. Subgroup analyses showed that compared to no radiotherapy, adjuvant radiotherapy significantly improved median survival time in patients with stage III disease (21.6 vs. 12.7 months; p = 0.017), positive margins (28.9 vs. 10.5 months; p = 0.012), and T3 or T4 tumors (26.8 vs. 16.8 months; p = 0.037). CONCLUSION Adjuvant radiotherapy significantly improved the survival of patients with biliary tract carcinoma, and is recommended especially for patients with stage III disease, positive surgical margins, or ≥ T3.
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Affiliation(s)
- Yan-Ling Guo
- Department of Radiotherapy, The Affiliated Hospital of Inner Mongolia Medical University, No. 1 Tongdao North Street, Hohhot, 010050, China
| | - Jia-Xing Guo
- Department of Radiotherapy, The Affiliated Hospital of Inner Mongolia Medical University, No. 1 Tongdao North Street, Hohhot, 010050, China
| | - Jian-Guo Zhao
- Department of Radiotherapy, The Affiliated Hospital of Inner Mongolia Medical University, No. 1 Tongdao North Street, Hohhot, 010050, China
| | - Ying-Na Bao
- Department of Radiotherapy, The Affiliated Hospital of Inner Mongolia Medical University, No. 1 Tongdao North Street, Hohhot, 010050, China.
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Zhao J, Ge Y, Li W, Jiang Z. Clinical significance of the detection of serum IgG4 and IgG4/IgG ratio in patients with thyroid-associated ophthalmopathy. Open Life Sci 2023; 18:20220694. [PMID: 37671099 PMCID: PMC10476477 DOI: 10.1515/biol-2022-0694] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2023] [Revised: 07/25/2023] [Accepted: 07/30/2023] [Indexed: 09/07/2023] Open
Abstract
To evaluate the clinical significance of detecting serum IgG4 and the IgG4/IgG ratio in patients with thyroid-associated ophthalmopathy (TAO) and to explore whether high serum IgG4 levels and the IgG4/IgG ratio are associated with the severity and activity of TAO, we retrospectively assessed the records of 78 TAO patients and 32 controls collected in our hospital from July 2020 to July 2022. The TAO patients were divided into TAO inactive and TAO active phase groups according to the clinical activity score (CAS), and we evaluated the association between the serum IgG4 levels, the IgG4/IgG ratio, and the clinical data of the participants. The levels of IgG4 significantly increased in the TAO active group compared to those in the inactive and control groups (P < 0.05). Additionally, the number of patients with increased IgG4 levels (≥135 mg/dL) in the TAO active group was markedly higher than that in the inactive and control groups (P < 0.05). The IgG4/IgG ratio was also significantly enhanced in the TAO active group compared to the inactive and control groups (P < 0.05). CAS was identified as an independent factor influencing IgG4 levels in patients with TAO. The levels of serum IgG4, as well as the IgG4/IgG ratio, were significantly increased in some patients with active TAO, and they were related to the CAS, suggesting that the pathogenesis of TAO may be heterogeneous.
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Affiliation(s)
- JianGuo Zhao
- Ophthalmology Department, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou325000, China
| | - Yajing Ge
- Ophthalmology Department, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou325000, China
| | - Wenjing Li
- Ophthalmology Department, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou325000, China
| | - Zipei Jiang
- Ophthalmology Department, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou325000, China
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Shen KK, Zhang XJ, Shao RJ, Zhao MC, Chen JJ, Yuan JJ, Zhao JG, Zhu HH. [Recognition of abnormal changes in echocardiographic videos by an artificial intelligence assisted diagnosis model based on 3D CNN]. Zhonghua Xin Xue Guan Bing Za Zhi 2023; 51:750-758. [PMID: 37460429 DOI: 10.3760/cma.j.cn112148-20230202-00058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 07/20/2023]
Abstract
Objective: To investigate the diagnostic efficiency and clinical application value of an artificial intelligence-assisted diagnosis model based on a three-dimensional convolutional neural network (3D CNN) on echocardiographic videos of patients with hypertensive heart disease, chronic renal failure (CRF) and hypothyroidism with cardiac involvement. Methods: This study is a retrospective study. The patients with hypertensive heart disease, CRF and hypothyroidism with cardiac involvement, who admitted in Henan Provincial People's Hospital from April 2019 to October 2021, were enrolled. Patients were divided into hypertension group, CRF group, and hypothyroidism group. Additionally, a simple random sampling method was used to select control healthy individuals, who underwent physical examination at the same period. The echocardiographic video data of enrolled participants were analyzed. The video data in each group was divided into a training set and an independent testing set in a ratio of 5 to 1. The temporal and spatial characteristics of videos were extracted using an inflated 3D convolutional network (I3D). The artificial intelligence assisted diagnosis model was trained and tested. There was no case overlapped between the training and validation sets. A model was established according to cases or videos based on video data from 3 different views (single apical four chamber (A4C) view, single parasternal left ventricular long-axis (PLAX) view and all views). The statistical analysis of diagnostic performance was completed to calculate sensitivity, specificity and area under the ROC curve (AUC). The time required for the artificial intelligence and ultrasound physicians to process cases was compared. Results: A total of 730 subjects aged (41.9±12.7) years were enrolled, including 362 males (49.6%), and 17 703 videos were collected. There were 212 cases in the hypertensive group, 210 cases in the CRF group, 105 cases in the hypothyroidism group, and 203 cases in the normal control group. The diagnostic performance of the model predicted by cases based on single PLAX view and all views data was excellent: (1) in the hypertensive group, the sensitivity, specificity and AUC of models based on all views data were 97%, 89% and 0.93, respectively, while those of models based on a single PLAX view were 94%, 95%, and 0.94, respectively; (2) in the CRF group, the sensitivity, specificity and AUC of models based on all views data were 97%, 95% and 0.96, respectively, while those of models based on a single PLAX view were 97%, 89%, and 0.93, respectively; (3) in the hypothyroidism group, the sensitivity, specificity and AUC of models based on all views data were 64%, 100% and 0.82, respectively, while those of models based on a single PLAX view were 82%, 89%, and 0.86, respectively. The time required for the 3D CNN model to measure and analyze the echocardiographic videos of each subject was significantly shorter than that for the ultrasound physicians ((23.96±6.65)s vs. (958.25±266.17)s, P<0.001). Conclusions: The artificial intelligence assisted diagnosis model based on 3D CNN can extract the dynamic temporal and spatial characteristics of echocardiographic videos jointly, and quickly and efficiently identify hypertensive heart disease and cardiac changes caused by CRF and hypothyroidism.
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Affiliation(s)
- K K Shen
- Department of Ultrasound, Henan Provincial People's Hospital, Zhengzhou 450003, China
| | - X J Zhang
- Department of Ultrasound, Henan Provincial People's Hospital, Zhengzhou 450003, China
| | - R J Shao
- CHISON Medical Technologies Co., LTD. Wuxi 214142, China
| | - M C Zhao
- CHISON Medical Technologies Co., LTD. Wuxi 214142, China
| | - J J Chen
- CHISON Medical Technologies Co., LTD. Wuxi 214142, China
| | - J J Yuan
- Department of Ultrasound, Henan Provincial People's Hospital, Zhengzhou 450003, China
| | - J G Zhao
- Department of Clinical Research Center, Henan Provincial People's Hospital, Zhengzhou 450003, China
| | - H H Zhu
- Department of Ultrasound, Henan Provincial People's Hospital, Zhengzhou 450003, China
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Lin HB, Zhao JG, Lu N, Han Q, Wang JQ, Guan JM, Wang X, Liu F. Prussian Blue/Cellulose Acetate Thin Film Composite Nanofiltration Membrane for Molecular Sieving and Catalytic Fouling Resistance. Chin J Polym Sci 2023. [DOI: 10.1007/s10118-023-2950-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/13/2023]
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Gao F, Wang Y, Du JX, Du XG, Zhao JG, Pan DK, Wu S, Zhao YF. Advances and applications of genetically modified pig models in biomedical and agricultural field. Yi Chuan 2023; 45:6-28. [PMID: 36927635 DOI: 10.16288/j.yczz.22-313] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 03/18/2023]
Abstract
Compared with rodents, pigs are closer to humans in terms of anatomy, metabolism and physiology, so they are ideal animal models of human diseases and xenotransplantation donors. In addition, as one of the most important livestock in China, pigs are closely related to our lives in terms of breeding improvement, disease prevention and animal welfare. In this review, we mainly summarize the research progress and future application of genetically modified pig models in the fields of xenotransplantation, molecular breeding and human disease models. We wish to take this opportunity to raise the awareness of researchers in related fields on cutting-edge technologies such as gene editing and understand the significance of genetically modified pig models in life science research.
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Affiliation(s)
- Fei Gao
- 1. State Key Laboratory of Agrobiotechnology, College of Biological Sciences, China Agricultural University, Beijing 100193, China
| | - Yu Wang
- 2. Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China
| | - Jia-Xiang Du
- 3. Chengdu Clonorgan Biotechnology Co., Ltd, Chengdu 610000, China
| | - Xu-Guang Du
- 1. State Key Laboratory of Agrobiotechnology, College of Biological Sciences, China Agricultural University, Beijing 100193, China
| | - Jian-Guo Zhao
- 2. Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China
| | - Deng-Ke Pan
- Clinical Immunology Translational Medicine Key Laboratory of Sichuan Province, Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital, Chengdu 610072, China
| | - Sen Wu
- 1. State Key Laboratory of Agrobiotechnology, College of Biological Sciences, China Agricultural University, Beijing 100193, China
| | - Yao-Feng Zhao
- 1. State Key Laboratory of Agrobiotechnology, College of Biological Sciences, China Agricultural University, Beijing 100193, China
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Abstract
Sacrococcygeal teratomas (SCT) in adults are extremely rare, and most SCTs are located either mainly outside the pelvis, with a small number of intrapelvic components, or mostly in the pelvis (types III and IV). The etiology of teratomas remains unknown. Most teratomas are benign, and approximately 1 to 2% of teratomas undergo malignant transformation, including squamous cell carcinoma, adenocarcinoma, sarcoma, and other malignancies. Most SCTs grow insidiously, and their symptoms are not easily detected in the early stages. Some cases may only be discovered through physical examination or compression symptoms when the tumor reaches a detectable size. Computed tomography and magnetic resonance imaging have high detection rates for presacral space-occupying lesions and can provide imaging details with guiding significance for the selection of surgical methods. Surgical resection is the preferred treatment option for SCT and can determine the pathological type. Common sacrococcygeal malignancies are mainly immature teratomas and mature teratomas. When the presence of malignant components is confirmed, the treatment model should be adjusted according to pathological type.
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Affiliation(s)
- Jia-Xing Guo
- Department of Radiotherapy, The Affiliated Hospital of Inner Mongolia Medical University, Hohhot, China
| | - Jian-Guo Zhao
- Department of Radiotherapy, The Affiliated Hospital of Inner Mongolia Medical University, Hohhot, China
| | - Ying-Na Bao
- Department of Radiotherapy, The Affiliated Hospital of Inner Mongolia Medical University, Hohhot, China
- * Correspondence: Ying-Na Bao, Department of Radiotherapy, The Affiliated Hospital of Inner Mongolia Medical University, No.1 Tongdao North Street, Hohhot 010050, China (e-mail: )
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Li N, Yue CY, Yang H, Song J, Li JW, Pan QL, Jiang S, Zhao JG, Yu D. Oxidative desulfurization and magnetic properties of a mixed-valence cobalt vanadate. Polyhedron 2022. [DOI: 10.1016/j.poly.2022.116077] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Yang H, He HM, Li N, Jiang S, Pang MJ, Li Y, Zhao JG. Design of a Novel Series of Hetero-Binuclear Superhalogen Anions MM′X4− (M = Li, Na; M′ = Be, Mg, Ca; X = Cl, Br). Front Chem 2022; 10:936936. [PMID: 35844647 PMCID: PMC9283999 DOI: 10.3389/fchem.2022.936936] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2022] [Accepted: 06/07/2022] [Indexed: 12/03/2022] Open
Abstract
A series of hetero-binuclear superatom motifs involving chloride/bromide ligands, that is, MM′X4− (M = Li, Na; M′ = Be, Mg, Ca; X = Cl, Br) anions, have been characterized by using many-body perturbation theory calculations. Large vertical electron detachment energies (VDEs, 5.470–6.799 eV) confirm the superhalogen identity of these anions. A larger VDE value can be obtained by introducing small M or large M′ central atoms and small halogen ligand atoms. Thus, one isomer of LiCaCl4− possesses the largest VDE value. Besides, when the extra electron is shared by all ligand atoms or three bridging ligand atoms, the isomers have relatively larger VDE values.
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Affiliation(s)
- Hui Yang
- Institute of Carbon Materials Science, Shanxi Datong University, Datong, China
| | - Hui-Min He
- Physics Department, Taiyuan Normal University, Taiyuan, China
| | - Ning Li
- Institute of Carbon Materials Science, Shanxi Datong University, Datong, China
- *Correspondence: Ning Li, ; Jian-Guo Zhao,
| | - Shang Jiang
- Institute of Carbon Materials Science, Shanxi Datong University, Datong, China
| | - Min-Jun Pang
- Institute of Carbon Materials Science, Shanxi Datong University, Datong, China
| | - Ying Li
- Institute of Theoretical Chemistry, College of Chemistry, Jilin University, Changchun, China
| | - Jian-Guo Zhao
- Institute of Carbon Materials Science, Shanxi Datong University, Datong, China
- *Correspondence: Ning Li, ; Jian-Guo Zhao,
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13
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Zhang Y, Xiao C, Li J, Song LX, Zhao YS, Zhao JG, Chang CK. [Influencing factors of iron metabolism assessment in patients with myelodysplastic syndrome: A retrospective study]. Zhonghua Xue Ye Xue Za Zhi 2022; 43:293-299. [PMID: 35680627 PMCID: PMC9189479 DOI: 10.3760/cma.j.issn.0253-2727.2022.04.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/18/2021] [Indexed: 11/05/2022]
Abstract
Objective: To analyze the influencing factors of iron metabolism assessment in patients with myelodysplastic syndrome. Methods: MRI and/or DECT were used to detect liver and cardiac iron content in 181 patients with MDS, among whom, 41 received regular iron chelation therapy during two examinations. The adjusted ferritin (ASF) , erythropoietin (EPO) , cardiac function, liver transaminase, hepatitis antibody, and peripheral blood T cell polarization were detected and the results of myelofibrosis, splenomegaly, and cyclosporine were collected and comparative analyzed in patients. Results: We observed a positive correlation between liver iron concentration and ASF both in the MRI group and DECT groups (r=0.512 and 0.606, respectively, P<0.001) , only a weak correlation between the heart iron concentration and ASF in the MRI group (r=0.303, P<0.001) , and no significant correlation between cardiac iron concentration and ASF in the DECT group (r=0.231, P=0.053) . Moreover, transfusion dependence in liver and cardiac [MRI group was significantly associated with the concentration of iron in: LIC: (28.370±10.706) mg/g vs (7.593±3.508) mg/g, t=24.30, P<0.001; MIC: 1.81 vs 0.95, z=2.625, P<0.05; DECT group: liver VIC: (4.269±1.258) g/L vs (1.078±0.383) g/L, t=23.14, P<0.001: cardiac VIC: 1.69 vs 0.68, z=3.142, P<0.05]. The concentration of EPO in the severe iron overload group was significantly higher than that in the mild to moderate iron overload group and normal group (P<0.001) . Compared to the low-risk MDS group, the liver iron concentration in patients with MDS with cyclic sideroblasts (MDS-RS) was significantly elevated [DECT group: 3.80 (1.97, 5.51) g/L vs 1.66 (0.67, 2.94) g/L, P=0.004; MRI group: 13.7 (8.1,29.1) mg/g vs 11.6 (7.1,21.1) mg/g, P=0.032]. Factors including age, bone marrow fibrosis, splenomegaly, T cell polarization, use of cyclosporine A, liver aminotransferase, and hepatitis antibody positive had no obvious effect on iron metabolism. Conclusion: There was a positive correlation between liver iron concentration and ASF in patients with MDS, whereas there was no significant correlation between cardiac iron concentration and ASF. Iron metabolism was affected by transfusion dependence, EPO concentration, and RS.
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Affiliation(s)
- Y Zhang
- Sixth People's Hospital Affiliated to Shanghai Jiao Tong University, Shanghai 200233, China
| | - C Xiao
- Sixth People's Hospital Affiliated to Shanghai Jiao Tong University, Shanghai 200233, China
| | - J Li
- Sixth People's Hospital Affiliated to Shanghai Jiao Tong University, Shanghai 200233, China
| | - L X Song
- Sixth People's Hospital Affiliated to Shanghai Jiao Tong University, Shanghai 200233, China
| | - Y S Zhao
- Sixth People's Hospital Affiliated to Shanghai Jiao Tong University, Shanghai 200233, China
| | - J G Zhao
- Sixth People's Hospital Affiliated to Shanghai Jiao Tong University, Shanghai 200233, China
| | - C K Chang
- Sixth People's Hospital Affiliated to Shanghai Jiao Tong University, Shanghai 200233, China
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Yang L, Wang JH, Upadhyay A, Zhao JG, Huang LY, Liao CH, Han Q. Identification of Theileria spp. and investigation of hematological profiles of their infections in goats in Hainan Island, China. Parasite 2022; 29:13. [PMID: 35254256 PMCID: PMC8900600 DOI: 10.1051/parasite/2022013] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Accepted: 02/20/2022] [Indexed: 11/16/2022] Open
Abstract
Theileria spp. are a group of parasites primarily transmitted by ticks and can pose a significant threat to domestic and wild animals globally. The main objective of this study was to understand the epidemiology of Theileria spp. in goats of Hainan Island/province, which is the only tropical region of China, and to study their hematological profiles in naturally infected goats. A total of 464 blood samples were collected from randomly selected local adult goats (Capra hircus, local domestic breed with black hair), from six cities and eight counties of Hainan, from November 2017 to October 2020. Blood smear microscopy of the sample and a nested polymerase chain reaction (nPCR) targeting the 18S rRNA gene combined with DNA sequencing were used to detect piroplasm infections in goats. Data analysis of the obtained sequences revealed that all the sequences were highly similar to the Theileria luwenshuni 18S rRNA gene sequence from the database. This result is consistent with the microscopic examination. In the hematological test, hematocrit, mean corpuscular volume, and mean corpuscular hemoglobin of the goats naturally infected with T. luwenshuni significantly increased, while mean corpuscular hemoglobin concentration and red blood cell distribution width (RDW) were significantly decreased. Results showed that T. luwenshuni could cause macrocytic, hypochromic anemia in goats. This study provides reliable and comprehensive information about the epidemiology of the parasite infections and hematological profile of the infected goats in Hainan, which encourages further investigations to develop practical control strategies for Theileria spp. infections in tropical areas.
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Affiliation(s)
- Lu Yang
- Laboratory of Tropical Veterinary Medicine and Vector Biology, School of Life Sciences, Hainan University Haikou Hainan 570228 PR China
- One Health Institute, Hainan University Haikou Hainan 570228 PR China
| | - Jin-Hua Wang
- Laboratory of Tropical Veterinary Medicine and Vector Biology, School of Life Sciences, Hainan University Haikou Hainan 570228 PR China
- One Health Institute, Hainan University Haikou Hainan 570228 PR China
- College of Animal Science and Technology, Hainan University Haikou Hainan 570228 PR China
| | - Archana Upadhyay
- Laboratory of Tropical Veterinary Medicine and Vector Biology, School of Life Sciences, Hainan University Haikou Hainan 570228 PR China
- One Health Institute, Hainan University Haikou Hainan 570228 PR China
| | - Jian-Guo Zhao
- Laboratory of Tropical Veterinary Medicine and Vector Biology, School of Life Sciences, Hainan University Haikou Hainan 570228 PR China
- One Health Institute, Hainan University Haikou Hainan 570228 PR China
| | - Liang-Yuan Huang
- Laboratory of Tropical Veterinary Medicine and Vector Biology, School of Life Sciences, Hainan University Haikou Hainan 570228 PR China
- College of Animal Science and Technology, Hainan University Haikou Hainan 570228 PR China
| | - Cheng-Hong Liao
- Laboratory of Tropical Veterinary Medicine and Vector Biology, School of Life Sciences, Hainan University Haikou Hainan 570228 PR China
- One Health Institute, Hainan University Haikou Hainan 570228 PR China
- Corresponding authors: ;
| | - Qian Han
- Laboratory of Tropical Veterinary Medicine and Vector Biology, School of Life Sciences, Hainan University Haikou Hainan 570228 PR China
- One Health Institute, Hainan University Haikou Hainan 570228 PR China
- Corresponding authors: ;
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Bao YN, Eerdemutu, An ZL, Zhang JH, Niu LR, Yu ZL, Zhao JG. Clinical Efficacy of Potato Extract for Alleviating Chemoradiotherapy-Related Leukopenia: a Randomized, Single-Blind, Placebo-Controlled Trial. Clin Lab 2022; 68. [DOI: 10.7754/clin.lab.2022.220130] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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16
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Yang H, Li Y, Zhao JG, Xing BY, He HM, Jiang S, Pang MJ. On structure and hyperhalogen properties of hetero-binuclear superatoms MM′(BO2)− (M = Na, mg; M′ = Mg, al; n = 4–6). Polyhedron 2021. [DOI: 10.1016/j.poly.2021.115456] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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17
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Zhao JG, Zhang L, Xiang XJ, Yu F, Ye WL, Wu DP, Wang JF, Xiong JP. Amarogentin secoiridoid inhibits in vivo cancer cell growth in xenograft mice model and induces apoptosis in human gastric cancer cells (SNU-16) through the mediation of G2/M cell cycle arrest and PI3K/Akt signalling pathway. J BUON 2021; 26:296. [PMID: 33721481] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
The Editors of JBUON issue an Expression of Concern to 'Amarogentin secoiridoid inhibits in vivo cancer cell growth in xenograft mice model and induces apoptosis in human gastric cancer cells (SNU-16) through G2/M cell cycle arrest and PI3K/Akt signalling pathway', by Jian-Guo Zhao, Ling Zhang, Xiao-Jun Xiang, Feng Yu, Wan-li Ye, Dong-Ping Wu, Jian-Fang Wang, Jian-Ping Xiong, JBUON 2016;21(3):609-617; PMID:27569081. Following the publication of the above article, readers drew to our attention that part of the data was possibly unreliable. We sent emails to the authors with a request to provide the raw data to prove the originality, but received no reply. Therefore, as we continue to work through the issues raised, we advise readers to interpret the information presented in the article with due caution. We thank the readers for bringing this matter to our attention. We apologize for any inconvenience it may cause.
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Affiliation(s)
- Jian-Guo Zhao
- Department of Oncology, Shaoxing People's Hospital ,Shaoxing Hospital of Zhejiang University, Shaoxing 312000,China
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18
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Abstract
A Cu(II)-catalyzed dehydrogenative enamination that couples alkyl-substituted electron-rich arenes and N-fluorobenzenesulfonimide to forge enamine products is reported. This C-N bond-forming procedure occurs selectively at the β-position of the alkyl group. Both aniline and anisole derivatives are tolerated under these conditions, to afford styryl amines. A reaction mechanism involving quinone methide and styrene intermediates is proposed.
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Affiliation(s)
- Jian-Guo Zhao
- CAS Key Laboratory of Synthetic and Self-Assembly Chemistry for Organic Functional Molecules, Center for Excellence in Molecular Synthesis, University of Chinese Academy of Sciences, Shanghai Institute of Organic Chemistry (SIOC), Chinese Academy of Sciences (CAS), 345 Lingling Rd., Shanghai 200032, China
| | - Dong-Hui Wang
- CAS Key Laboratory of Synthetic and Self-Assembly Chemistry for Organic Functional Molecules, Center for Excellence in Molecular Synthesis, University of Chinese Academy of Sciences, Shanghai Institute of Organic Chemistry (SIOC), Chinese Academy of Sciences (CAS), 345 Lingling Rd., Shanghai 200032, China.,School of Pharmacy, Nanjing University of Chinese Medicine, 138 Xianlin Rd., Nanjing 210023, People's Republic of China
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19
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Ji XJ, Chen W, Wang X, Zhang Y, Liu Q, Guo WW, Zhao JG, Yang SM. Canalostomy is an ideal surgery route for inner ear gene delivery in big animal model. Acta Otolaryngol 2019; 139:939-947. [PMID: 31486693 DOI: 10.1080/00016489.2019.1654130] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Background: Inner gene therapy offers great promises as a potential treatment for hearing loss. Aims/objectives: One of the critical determinants of the success of inner ear gene therapy is to find a delivery method which results in consistent transduction efficiency of targeted cell types while minimizing hearing loss. Material and methods: Surgery was performed only in the right ear of each Bama miniature pig, and the left ear served as a control. The gene delivery to inner ear via round window membrane (RWM) and posterior semicircular canal (PSC) approach was performed with the viral vector AAV1-CMV-GFP. Results: The gene delivery through RWM and the PSC (canalostomy) is able to perfuse the inner ear. Conclusions and significance: The easy anatomic identification of the PSC, as to RWM, as well as minimal manipulation of the temporal bone required, make this surgical approach an attractive option for inner ear gene delivery in big animal model.
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Affiliation(s)
- Xiao-Jun Ji
- Department of Otolaryngology, Head and Neck Surgery, Chinese PLA Medical School, Institute of Otolaryngology, Chinese PLA General Hospital
| | - Wei Chen
- Department of Otolaryngology, Head and Neck Surgery, Chinese PLA Medical School, Institute of Otolaryngology, Chinese PLA General Hospital
| | - Xiao Wang
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, China
| | - Yue Zhang
- Department of Otolaryngology, Head and Neck Surgery, Chinese PLA Medical School, Institute of Otolaryngology, Chinese PLA General Hospital
| | - Qian Liu
- Department of Otolaryngology, Affiliated First Hospital, Fujian Medical University, Fuzhou, China
| | - Wei-Wei Guo
- Department of Otolaryngology, Head and Neck Surgery, Chinese PLA Medical School, Institute of Otolaryngology, Chinese PLA General Hospital
| | - Jian-Guo Zhao
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, China
| | - Shi-Ming Yang
- Department of Otolaryngology, Head and Neck Surgery, Chinese PLA Medical School, Institute of Otolaryngology, Chinese PLA General Hospital
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20
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Wang XF, Ren J, He HQ, Liang L, Xie X, Li ZX, Zhao JG, Yu JM. Self-assembled nanoparticles of reduction-sensitive poly (lactic-co-glycolic acid)-conjugated chondroitin sulfate A for doxorubicin delivery: preparation, characterization and evaluation. Pharm Dev Technol 2019; 24:794-802. [PMID: 30907676 DOI: 10.1080/10837450.2019.1599914] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
In this study, reduction-sensitive self-assembled polymer nanoparticles based on poly (lactic-co-glycolic acid) (PLGA) and chondroitin sulfate A (CSA) were developed and characterized. PLGA was conjugated with CSA via a disulfide linkage (PLGA-ss-CSA). The critical micelle concentration (CMC) of PLGA-ss-CSA conjugate is 3.5 µg/mL. The anticancer drug doxorubicin (DOX) was chosen as a model drug, and was effectively encapsulated into the nanoparticles (PLGA-ss-CSA/DOX) with high loading efficiency of 15.1%. The cumulative release of DOX from reduction-sensitive nanoparticles was only 34.8% over 96 h in phosphate buffered saline (PBS, pH 7.4). However, in the presence of 20 mM glutathione-containing PBS environment, DOX release was notably accelerated and almost complete from the reduction-sensitive nanoparticles up to 96 h. Moreover, efficient intracellular DOX release of PLGA-ss-CSA/DOX nanoparticles was confirmed by CLSM assay in A549 cells. In vitro cytotoxicity study showed that the half inhibitory concentrations of PLGA-ss-CSA/DOX nanoparticles and free DOX against A549 cells were 1.141 and 1.825 µg/mL, respectively. Therefore, PLGA-ss-CSA/DOX nanoparticles enhanced the cytotoxicity of DOX in vitro. These results suggested that PLGA-ss-CSA nanoparticles could be a promising carrier for drug delivery.
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Affiliation(s)
- Xu-Feng Wang
- a School of Pharmacy and Life Sciences , Jiujiang University , Jiujiang , China
| | - Jin Ren
- a School of Pharmacy and Life Sciences , Jiujiang University , Jiujiang , China
| | - Hai-Qing He
- a School of Pharmacy and Life Sciences , Jiujiang University , Jiujiang , China
| | - Liang Liang
- b Analytical and Testing Center , Jiujiang University , Jiujiang , China
| | - Xin Xie
- c College of Basic Medical Science , Jiujiang University , Jiujiang , China
| | - Zi-Xin Li
- a School of Pharmacy and Life Sciences , Jiujiang University , Jiujiang , China
| | - Jian-Guo Zhao
- a School of Pharmacy and Life Sciences , Jiujiang University , Jiujiang , China
| | - Jing-Mou Yu
- a School of Pharmacy and Life Sciences , Jiujiang University , Jiujiang , China
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21
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Wang Q, Li YH, Jiang WJ, Zhao JG, Xiao BG, Zhang GX, Ma CG. Graphene-Based Nanomaterials: Potential Tools for Neurorepair. Curr Pharm Des 2019; 24:56-61. [PMID: 28847305 DOI: 10.2174/1381612823666170828130526] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2017] [Accepted: 08/24/2017] [Indexed: 11/22/2022]
Abstract
Graphene, with its outstanding electrical properties, large surface area, and excellent mechanical properties, is found in a wide variety of applications in biomimetic substrates and biomedicine, with the result that there is growing interest in the effect of graphene-based nanomaterials on neural cells. This review sums up current research on the effectiveness of graphene and its derivatives on neural cells. We emphasize the biocompatibility of graphene and its derivatives, and how they affect the behavior of neural cells, including adhesion, proliferation, neurite outgrowth and differentiation. In addition, we discuss at great length the literature on graphenebased nanomaterials for drug delivery applications. While their in vivo effects on the nervous system remain to be explored, encouraging findings indicate that graphene-based nanomaterials have significant potential as novel therapies for neurodegenerative disease.
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Affiliation(s)
- Qing Wang
- "2011" Collaborative Innovation Center/Research Center of Neurobiology, Shanxi University of Chinese Medicine, Taiyuan, China
| | - Yan-Hua Li
- Institute of Brain Science, Shanxi Datong University, Datong, China
| | - Wei-Jia Jiang
- "2011" Collaborative Innovation Center/Research Center of Neurobiology, Shanxi University of Chinese Medicine, Taiyuan, China
| | - Jian-Guo Zhao
- Institute of Brain Science, Shanxi Datong University, Datong, China
| | - Bao-Guo Xiao
- Institute of Brain Science, Shanxi Datong University, Datong, China.,Institute of Neurology, Huashan Hospital, Institutes of Brain Science and State Key Laboratory of Medical Neurobiology, Fudan University, Shanghai, China
| | - Guang-Xian Zhang
- Department of Neurology, Thomas Jefferson University, Philadelphia, PA 19107, United States
| | - Cun-Gen Ma
- "2011" Collaborative Innovation Center/Research Center of Neurobiology, Shanxi University of Chinese Medicine, Taiyuan, China.,Institute of Brain Science, Shanxi Datong University, Datong, China
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22
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Abstract
RATIONALE Glucagonoma is a rare neuroendocrine tumor of the pancreas. Glucagonoma syndrome is often misdiagnosed as other skin lesions by clinicians due to a typical clinical sign of necrolytic migratory erythema (NME) with severe erythematous rash. PATIENT CONCERNS A 48-year-old female patient was admitted to our department because she presented with unclear recurrent severe erythematous rash. The patient was diagnosed as skin disease. DIAGNOSES Histopathologic examination revealed a pancreatic glucagonoma. Immnohistochemical staining of tumor tissue was positive for glucagon. INTERVENTIONS The distal pancreatectomy plus splenectomy was performed in 2017. OUTCOMES The skin lesions disappeared after surgery. She was followed up and showed no recurrence until now. LESSONS Clinicians should consider the diagnosis of glucagonoma according to the typical initial symptoms. Early diagnosis is very important to provide a better prognosis. A multidisciplinary approach is effective in patients with unresectable metastatic tumors.
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23
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Zhao JG, Nie L, Chen XQ, Chen N, Zeng H. [The subgroup analysis of the prognostic value of the intraductal carcinoma of the prostate in patients with metastatic prostate cancer]. Zhonghua Wai Ke Za Zhi 2019; 57:422-427. [PMID: 31142066 DOI: 10.3760/cma.j.issn.0529-5815.2019.06.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Objective: To determine the prognostic value of the intraductal carcinoma of the prostate IDC-P in metastatic prostate cancer (mPCa) patients of different subgroups. Methods: Data of 582 de novo mPCa patients between January 2011 and December 2017 diagnosed at Departments of Urology, West China Hospital, Sichuan University were retrospectively analyzed. The age was (70±8) years (range: 45 to 89 years). IDC-P was identified from 12-core prostate biopsy. The prognostic role of IDC-P was assessed by Kaplan-Meier curves and Cox regression. Subgroup analysis was conducted by the forest plot. The endpoints were castration-resistant prostate cancer free survival (CFS) and overall survival (OS). Results: In total, 177/582 (30.4%) patients harbored IDC-P. Patients with IDC-P had poorer CFS and OS than those without IDC-P (mCFS: 12.1 months vs. 16.9 months, P=0.000; mOS: 39.7 months vs. not reached, P=0.000). Multivariate Cox regression analysis indicated that, the existence of IDC-P was an independent prognosticator of both CFS (HR=1.40, 95% CI: 1.10 to 1.79, P=0.006) and OS (HR=1.51, 95% CI: 1.02 to 2.25, P=0.041). Subanalysis indicated that, in most subgroups, IDC-P was an adverse prognosticator of both CFS and OS. Even in subgroups with adverse clinicopathological features, e.g. Gleason score 9 to 10 (CFS: HR=1.467, P=0.007; OS: HR=1.807, P=0.013), baseline prostate specific antigen≥50 μg/L (CFS: HR=1.616, P=0.000; OS: HR=1.749, P=0.006), anemia (CFS: HR=1.653, P=0.036; OS: HR=2.100, P=0.038), alkaline phosphatase≥160 U/L (CFS: HR=1.326, P=0.038; OS: HR=1.725, P=0.010) or abnormal lactate dehydrogenase level (CFS: HR=1.614, P=0.001; OS: HR=1.900, P=0.003), IDC-P was still closely associated with shorter CFS and OS. Conclusions: The presence of IDC-P was closely related to poor survival outcomes for patients with mPCa. IDC-P was an adverse prognosticator in most subgroup patients. The description of IDC-P in the pathological report of prostate biopsy would help clinicians to evaluate the prognosis of mPCa patients more accurately and make better treatment choices.
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Affiliation(s)
- J G Zhao
- Departments of Urology, West China Hospital, Sichuan University, Chengdu 610041, China
| | - L Nie
- Departments of Pathology, West China Hospital, Sichuan University, Chengdu 610041, China
| | - X Q Chen
- Departments of Pathology, West China Hospital, Sichuan University, Chengdu 610041, China
| | - N Chen
- Departments of Pathology, West China Hospital, Sichuan University, Chengdu 610041, China
| | - H Zeng
- Departments of Urology, West China Hospital, Sichuan University, Chengdu 610041, China
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24
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Huang JJ, Cao CW, Zheng GM, Zhao JG. Genome editing technologies drive the development of pig genetic improvement. Yi Chuan 2017; 39:1078-1089. [PMID: 29254925 DOI: 10.16288/j.yczz.17-130] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
Abstract
Nuclease-mediated genome editing technologies contribute to the rapid advances in life sciences via the ability to edit the genomes within living cells, and present a new era for porcine genetic improvement. In this review, we introduce the development of various genomic editing technologies, particularly CRISPR/Cas9 strategies and characteristics of various naturally occurring and artificially engineered CRISPR enzymes. Also, we summarize progress in pig genetic improvement mediated by genome editing, especially those associated with meat quality traits and anti-virus resistance. We highlight the challenges in the implementation of pig genetic improvement and the prospects of pig genetic breeding based on genome editing technologies.
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Affiliation(s)
- Jiao-Jiao Huang
- State Key Lab of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China
| | - Chun-Wei Cao
- State Key Lab of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China
| | - Guo-Min Zheng
- Company of Rongchang Breeding, Binzhou 251900, China
| | - Jian-Guo Zhao
- 1. State Key Lab of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China; 2. University of Chinese Academy of Sciences, Beijing 100101, China
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25
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Liu HD, Yu H, Zhao JG, Xu XF, Wang NF, Wang W, He XY. [Value of MRI in prenatal diagnosis of abnormal fetal kidneys]. Zhonghua Fu Chan Ke Za Zhi 2016; 51:895-900. [PMID: 28057124 DOI: 10.3760/cma.j.issn.0529-567x.2016.12.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the value of MRI in the prenatal diagnosis of abnormal fetal kidneys. Methods: From December 2014 to March 2016, 51 women underwent MRI and were confirmed as having fetuses with abnormal fetal kidneys when follow up. Their clinical and MRI profiles were analyzed retrospectively, including MRI manifestation, the fetal kidney signal intensity of diffusion-weighted imaging (DWI) and apparent diffusion coefficient (ADC). The signal intensity of DWI and ADC of the abnormal kidney and the normal opposite kidney, and those of the normal and abnormal kidneys in different individuals were compared. The accuracies of MRI and ultrasound in evaluating abnormal fetal kidneys were also compared. Results: MRI could accurately demonstrate the morphological features of abnormal fetal kidneys. There was no statistically significant difference between DWI signal intensity and ADC value of the abnormal kidney[368 ± 125, (1.516 ± 0.420) × 10-3 mm2/s] and the normal opposite one[410 ± 125, (1.362 ± 0.251) × 10-3 mm2/s], P values were 0.165 and 0.184, respectively. The DWI signal intensity of normal kidneys (401 ± 124) was higher than that of renal cysts (182 ± 40, P <0.01), and the ADC value of normal kidneys[(1.306 ± 0.252) × 10-3 mm2/s] was lower than that of renal cysts[(2.912 ± 0.235) × 10-3 mm2/s] and multicystic dysplastic kidneys[(1.870±0.654) ×10-3 mm2/s], P values were <0.01 and 0.045, respectively. The diagnostic accuracy of MRI and prenatal ultrasound for abnormal fetal kidneys were 94% (63/67) and 85% (57/67), respectively. However, there was no statistical difference between the two methods (P=0.070). Conclusion: MRI have an important role in the prenatal diagnosis and evaluation of abnormal fetal kidneys.
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Affiliation(s)
- H D Liu
- Department of Radiology, Tianjin Central Hospital of Gynecology and Obstetrics, Tianjin 300100, China
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26
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Zhao JG, Zhang L, Xiang XJ, Yu F, Ye WL, Wu DP, Wang JF, Xiong JP. Amarogentin secoiridoid inhibits in vivo cancer cell growth in xenograft mice model and induces apoptosis in human gastric cancer cells (SNU-16) through G2/M cell cycle arrest and PI3K/Akt signalling pathway. J BUON 2016; 21:609-617. [PMID: 27569081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
PURPOSE To investigate the in vitro and in vivo antitumor effects of amarogentin in SNU-16 human gastric cancer cells as well as in nude mice xenograft model. The effects of this compound on cell apoptosis, cell cycle phase distribution and PI3K/Akt and m-TOR signalling pathways were also studied in detail. METHODS MTT assay was used to study the effect of amarogentin on SNU-16 cell viability while clonogenic assay indicated the effect of the compound on colony formation tendency of these cells. Phase contrast microscopy revealed the effect on cellular morphology while flow cytometry was engaged to study the effects on cell apoptosis and cell cycle arrest. SNU-16 cancer cells were subcutaneously inoculated into nude mice to investigate the in vivo antitumor effects of amarogentin. RESULTS Amarogentin induced potent, dose-dependent as well as time-dependent cytotoxic effects on the growth of SNU-16 human gastric cancer cells. Amarogentin also inhibited the colony forming capability of these tumor cells and its treatment led to morphological alterations in these cells in which the cells became withered and rounded, detached from one another and adopted irregular shapes while floating freely in the culture medium. In comparison to untreated control cells, the amarogentin treated cells with 10, 50 and 75 μM exhibited 32.5, 45.2 and 57.1 % apoptotic cells, respectively. Amarogentin induced potent and dose-dependent G2/M cell cycle arrest in these cells and led to downregulation of m-TOR, p-PI3K, PI3K, p-Akt and Akt and upregulation of cyclin D1 and cyclin E protein expressions. The tumor tissues obtained from the amarogentin-treated mice were much smaller than the tumor tissues derived from the control group. CONCLUSION Amarogentin exerts potent in vitro and in vivo antitumor effects in SNU-16 cell model as well as in nude mice xenograft model. These antitumor effects were found to be mediated through apoptosis induction, G2/M cell cycle arrest and downregulation of PI3K/Akt/m-TOR signalling pathways.
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Affiliation(s)
- Jian-Guo Zhao
- Department of Pathology, Faculty of Medicine, Adnan Menderes University, Aydin, Turkey
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Zhao JG, Zhang L, Xiang XJ, Yu F, Yu F, Ye WL, Wu DP, Wang JF, Xiong JP. Erratum: Amarogentin secoiridoid inhibits in vivo cancer cell growth in xenograft mice model and induces apoptosis in human gastric cancer cells (SNU-16) through G2/M cell cycle arrest and PI3K/Akt signalling pathway. J BUON 2016; 21:1332. [PMID: 27837645] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
In the version of this article initially published, in Volume 21, issue 3, the first affiliation (affiliation number 1) was incorrectly stated as "Department of Pathology, Faculty of Medicine, Adnan Menderes University, Aydin, Turkey". The correct affiliation is "Department of Oncology, Shaoxing People's Hospital ,Shaoxing Hospital of Zhejiang University, Shaoxing 312000,China'. This error appeared only in the PubMed database and not in the print form of the Journal.
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Affiliation(s)
- Jian-Guo Zhao
- Department of Oncology, Shaoxing People's Hospital, Shaoxing Hospital of Zhejiang University, Shaoxing 312000,China
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Liu CY, Shen Y, Zhao JG, Qu PP. Clinical experience of uterine tumors resembling ovarian sex cord tumors: a clinicopathological analysis of 6 cases. Int J Clin Exp Pathol 2015; 8:4158-4164. [PMID: 26097607 PMCID: PMC4466994] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 01/18/2015] [Accepted: 03/20/2015] [Indexed: 06/04/2023]
Abstract
OBJECTIVE To compare the clinicopathological features, diagnosis, treatment, and prognosis of two types of uterine sex cord-like tumors. METHODS The clinicopathological features of four uterine tumors resembling ovarian sex cord tumors (UTROSCTs) and two endometrial stromal tumors with sex cord-like elements (ESTSCLEs) were analyzed retrospectively. RESULTS All patients were premenopausal women. The most common clinical presentation was vaginal bleeding (four cases). Total hysterectomy with or without bilateral adnexectomy was the most common treatment pattern (five cases). A patient with UTROSCTs, presenting with recurrence 10 months after transvaginal submucous myomectomy, underwent a total hysterectomy (case 2). All tumors were polypoid or intramural masses, usually located in the uterine fundus or submucosa. The majority of UTROSCTs were positive for cytokeratin (4/4 cases), one was positive for Wilms tumor protein, and of two cases with smooth muscle actin immunoreactivity, two were positive for desmin. UTROSCTs were positive for two or more sex cord markers, whereas sex cord markers were less frequently detected in ESTSCLEs. CD10 was variably positive in two UTROSCT patients and strongly positive in all ESTSCLE patients. Three UTROSCTs and one ESTSCLE were positive for both estrogen and progesterone receptors. All patients with UTROSCTs were alive without evidence of recurrence. One patient with ESTSCLEs underwent postoperative chemotherapy after total vaginal hysterectomy but developed recurrence at the vaginal stump (case 5). The other patient with ESTSCLEs was lost to follow-up. CONCLUSION These UTROSCTs are polymorphic neoplasms with true sex cord differentiation and uncertain malignant potential, which possess a distinct biology from ESTSCLEs.
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Affiliation(s)
- Cai-Yan Liu
- Clinical College of Central Gynecology and Obstetrics, Tianjin Medical UniversityTianjin 300070, China
- Department of Gynecological Oncology, Tianjin Central Hospital of Gynecology and ObstetricsTianjin 300100, China
| | - Yan Shen
- Department of Pathology, Tianjin Central Hospital of Gynecology and ObstetricsTianjin 300100, China
| | - Jian-Guo Zhao
- Department of Gynecological Oncology, Tianjin Central Hospital of Gynecology and ObstetricsTianjin 300100, China
| | - Peng-Peng Qu
- Department of Gynecological Oncology, Tianjin Central Hospital of Gynecology and ObstetricsTianjin 300100, China
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Zhao JG, Hu Y, Liao Q, Niu ZY, Zhao YP. Prognostic significance of SUVmax and serum carbohydrate antigen 19-9 in pancreatic cancer. World J Gastroenterol 2014; 20:5875-5880. [PMID: 24914348 PMCID: PMC4024797 DOI: 10.3748/wjg.v20.i19.5875] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/24/2013] [Revised: 02/11/2014] [Accepted: 03/06/2014] [Indexed: 02/07/2023] Open
Abstract
AIM: To investigate the prognostic significance of pretreatment standardized maximum uptake value (SUVmax) and serum carbohydrate antigen (CA)19-9 in pancreatic cancer.
METHODS: From January 2007 to October 2011, 80 consecutive patients with pancreatic cancer who received positron emission/computed tomography before any treatment were enrolled in this study. The pretreatment SUVmax and CA19-9 level of the primary pancreatic tumor were obtained and compared with clinicopathological and prognostic factors. Student’s t test for unpaired data was used to analyze the differences between two groups. Univariate analysis and Cox proportional hazards regression were used to examine the independent effects of each significant variable. Survival was analyzed by the Kaplan-Meier method.
RESULTS: There was a significant correlation between both the SUVmax and serum CA19-9 of pancreatic cancer and R0 surgical resection (P = 0.043 and P = 0.007). Lymph node metastasis was associated with SUVmax (P = 0.017), but not serum CA19-9 (P = 0.172). On the contrary, the tumor stage was significantly related to serum CA19-9 (P = 0.035), but not SUVmax (P = 0.110). The univariate analysis showed that survival time was significantly related to tumor stage (P < 0.001), lymph node metastasis (P = 0.043), R0 surgical resection (P < 0.001), serum CA19-9 (P = 0.001), SUVmax (P < 0.001) and SUVmax plus CA19-9 (P = 0.002). Multivariate analysis clearly showed that only tumor stage (hazard ratio = 0.452; P = 0.020) was an independent prognostic factor for overall survival in pancreatic cancer. Higher SUVmax or CA19-9 showed worse prognosis. We found that high serum CA19-9 plus SUVmax was the most significant variable.
CONCLUSION: Higher pretreatment SUVmax and serum CA19-9 indicates poor prognosis. SUVmax plus serum CA19-9 is the most significant variable in predicting survival.
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Shen XZ, Zhao JG, Wu JJ, Liu F. Clinical and computed tomography features of adult abdominopelvic desmoplastic small round cell tumor. World J Gastroenterol 2014; 20:5157-5164. [PMID: 24803835 PMCID: PMC4009557 DOI: 10.3748/wjg.v20.i17.5157] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/07/2013] [Revised: 12/22/2013] [Accepted: 01/20/2014] [Indexed: 02/06/2023] Open
Abstract
To investigate the clinical and computed tomography (CT) features of desmoplastic small round cell tumor (DSRCT), we retrospectively analyzed the clinical presentations, treatment and outcome, as well as CT manifestations of four cases of DSRCT confirmed by surgery and pathology. The CT manifestations of DSRCT were as follows: (1) multiple soft-tissue masses or diffuse peritoneal thickening in the abdomen and pelvis, with the dominant mass usually located in the pelvic cavity; (2) masses without an apparent organ-based primary site; (3) mild to moderate homogeneous or heterogeneous enhancement in solid area on enhanced CT; and (4) secondary manifestations, such as ascites, hepatic metastases, lymphadenopathy, hydronephrosis and hydroureter. The prognosis and overall survival rates were generally poor. Commonly used treatment strategies including aggressive tumor resection, polychemotherapy, and radiotherapy, showed various therapeutic effects. CT of DSRCT shows characteristic features that are helpful in diagnosis. Early discovery and complete resection, coupled with postoperative adjuvant chemotherapy, are important for prognosis of DSRCT. Whole abdominopelvic rather than locoregional radiotherapy is more effective for unresectable DSRCT.
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Chen SJ, Chen XR, Yan L, Zhao JG, Zhang F, Jiang ZJ. [Research on characteristic of interrelationship between toxic organic compound BPA and Chlorella vulgaris]. Huan Jing Ke Xue 2014; 35:1457-1461. [PMID: 24946602] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
The effects of different concentrations of bisphenol A (BPA) on Chlorella vulgaris and removal capacity of BPA by Chlorella vulgaris were investigated. Results showed that a low concentration (0-20 mg x L(-1)) of BPA promoted the growth of Chlorella vulgaris, whereas a relative high concentration (20-50 mg x L(-1)) of BPA inhibited the growth of Chlorella vulgaris, and the inhibition effect was positively correlated with the concentration of BPA. Likewise, a high dose of initial BPA (> 20 mg x L(-1)) led to a decline in the content of chlorephyll a. Chlorella vulgaris had BPA removal capacity when initial BPA concentration ranged from 2 mg x L(-1) to 50 mg x L(-1). There was positive correlation between the removal rate of BPA per cell and initial BPA concentration. The removal rate of BPA was the highest when initial BPA was 50 mg x L(-1), which appeared between lag phase and logarithmic phase.
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Jiao CX, Xing BY, Zhao JG, Geng Y, Li ZP. Facile preparation of graphene by high-temperature electrolysis and its application in supercapacitor. Acta Chim Slov 2014; 61:852-857. [PMID: 25551726] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2023] Open
Abstract
Graphene is well known owing to its astonishing properties: stronger than diamond, more conductive than copper and more flexible than rubber. Because of its potential uses in industry, researchers have been searching for less toxicity ways to make graphene in large amount with lower cost. We demonstrated an efficient method to prepare graphene by high temperature electrolysis technique. High resolution scanning electron microscopy and raman spectroscopy were used to characterize the microstructure of graphene. Graphene was assembled into the supercapacitor and its performance of electrochemical capacitor was investigated by constant current charge and discharge, cyclic voltammetry and AC impedance. The results showed that the micro-morphology of the prepared graphene was multilayer and it was favorable when the electrolytic voltage was 1.5 V. When the current density is 1 mA/cm(2), the specific capacitance of the graphene supercapacitor can reach 78.01 F/g in 6 mol/L KOH electrolyte, which was an increase of 114% compared with 36.43 F/g of conventional KOH electrolyte.
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Zhao JG, He J, Li X, Guo N, Li GS, Zhang GL. [The spinous process tenderness syndrome--a new naming of a series of common symptoms]. Zhongguo Zhong Xi Yi Jie He Za Zhi 2013; 33:990-992. [PMID: 24063227] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
The rheumatoid activity on any part of the spine may affect the surrounding nerves, causing a series of symptoms at the related region of the innervations. By pressing corresponding parts on spinous processes of patient spine, tenderness of various degrees occurs. We named this kind of symptoms as "the spinous process tenderness syndrome". Meanwhile, we borrowed laboratory and imaging examinations to diagnose and differential identify. The symptoms could be alleviated by eliminating pathogenic reasons, local resting, and anti-rheumatic drugs.
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Affiliation(s)
- Jian-Guo Zhao
- First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin 300193, China.
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Wang YP, Qi ST, Wei Y, Ge ZJ, Chen L, Hou Y, Ouyang YC, Schatten H, Zhao JG, Sun QY. Knockdown of UCHL5IP causes abnormalities in γ-tubulin localisation, spindle organisation and chromosome alignment in mouse oocyte meiotic maturation. Reprod Fertil Dev 2013; 25:495-502. [PMID: 23182369 DOI: 10.1071/rd12300] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2012] [Accepted: 10/16/2012] [Indexed: 11/23/2022] Open
Abstract
UCHL5IP is one of the subunits of the haus complex, which is important for microtubule generation, spindle bipolarity and accurate chromosome segregation in Drosophila and human mitotic cells. In this study, the expression and localisation of UCHL5IP were explored, as well as its functions in mouse oocyte meiotic maturation. The results showed that the UCHL5IP protein level was consistent during oocyte maturation and it was localised to the meiotic spindle in MI and MII stages. Knockdown of UCHL5IP led to spindle defects, chromosome misalignment and disruption of γ-tubulin localisation in the spindle poles. These results suggest that UCHL5IP plays critical roles in spindle formation during mouse oocyte meiotic maturation.
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Affiliation(s)
- Ya-Peng Wang
- State Key Laboratory of Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, 100101, China
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Miao YL, Zhang X, Zhao JG, Spate L, Zhao MT, Murphy CN, Prather RS, Sun QY, Schatten H. Effects of griseofulvin on in vitro porcine oocyte maturation and embryo development. Environ Mol Mutagen 2012; 53:561-566. [PMID: 22829310 DOI: 10.1002/em.21717] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2012] [Accepted: 06/12/2012] [Indexed: 06/01/2023]
Abstract
Griseofulvin is an orally administered antifungal drug that affects microtubule formation in vitro and interferes with microtubule dynamics in vivo as clearly shown for mitotic cells in several cell systems. This article reports the effects of griseofulvin on in vitro maturation of porcine oocytes and subsequent effects on embryo development. Our results revealed a concentration-dependent effect on meiotic spindles with 20-40 μM griseofulvin affecting oocyte maturation, and 40 μM affecting fertilization and embryo development. These concentrations of griseofulvin did not affect mitochondrial and cortical granule distribution that also depend on microtubule and cytoskeletal functions during oocyte maturation. Specific effects on the meiotic spindle included spindle disorganization and aberrant chromosome separation displayed as prominent chromosome clusters in oocytes treated with 40 μM griseofulvin. These results strongly suggested that griseofulvin affected porcine oocyte in vitro maturation and following embryo development by disturbing microtubule dynamics.
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Affiliation(s)
- Yi-Liang Miao
- Department of Veterinary Pathobiology, University of Missouri, Columbia, Missouri 65211, USA
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Zhao L, Zhao JG. [Twenty-one cases of chronic alcoholic nervous disease treated with acupuncture]. Zhongguo Zhen Jiu 2011; 31:802. [PMID: 21972628] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
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Zhang XY, Niu BZ, Zhao JG. [Forty-four cases of humeral epicondilitis treated by analog needling method]. Zhongguo Zhen Jiu 2011; 31:859-860. [PMID: 21972653] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
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Wang Y, Zhao JG, Gong BL, Sun YP. Synthesis of Polyacrylaminothiourea Chelating Fiber and Properties of Concentration and Separation of Trace Noble Metal Ions from Samples. CHINESE J CHEM 2010. [DOI: 10.1002/cjoc.20020200113] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Zhao JG, Cai B, Qiu B, Sun L. [A case report of immature hepatic teratoma]. Zhonghua Gan Zang Bing Za Zhi 2010; 18:72. [PMID: 20128979 DOI: 10.3760/cma.j.issn.1007-3418.2010.01.021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Jian-Guo Zhao
- Department of Hepatobiliary Surgery, Wuxi Peoples Hospital, Wuxi 214000, China
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Miao YL, Sun QY, Zhang X, Zhao JG, Zhao MT, Spate L, Prather RS, Schatten H. Centrosome abnormalities during porcine oocyte aging. Environ Mol Mutagen 2009; 50:666-671. [PMID: 19593801 DOI: 10.1002/em.20506] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Centrosomes are critically important for maintaining meiotic spindle integrity in the meiosis II (MII) stage where oocytes are arrested in most mammalian species before fertilization takes place. In women of advanced ages or during in vitro fertilization (IVF) procedures, aneuploidy is frequently seen as a result of oocyte aging, which is strongly related to centrosome instability. Abnormal distribution of centrosomes and microtubules has been reported in aging human and mouse oocytes. This study reports the dynamic changes of centrosomes and the microtubule cytoskeleton in porcine oocytes during aging and treatment by caffeine to restore spindle integrity in aging oocytes. We tested the effects of caffeine on the MII spindle with focus on microtubules and on the centrosome proteins gamma-tubulin and NuMA (nuclear mitotic apparatus protein). The results revealed that in porcine oocytes aged for 48 hr., centrosomes were absent and spindles became abnormal and disorganized; however, caffeine could prevent these changes or restore centrosome integrity in the meiotic spindle poles and displayed similar MII spindles as those seen in fresh oocytes.
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Affiliation(s)
- Yi-Liang Miao
- Department of Veterinary Pathobiology, University of Missouri, 1600 E Rollins Street, Columbia, MO 65211, USA
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Zhao JG, Xiong JP, Xiang XJ, Qiu F, Zhang L, Yu F. A phase II trial of epirubicin plus oxaliplatin and fluorouracil as first-line chemotherapy for advanced gastric cancer. Ai Zheng 2009; 28:42-44. [PMID: 19448415] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
BACKGROUND AND OBJECTIVE The prognosis of advanced gastric cancer (AGC) is poor. No standard chemotherapy regimens for AGC are available so far. Randomized studies have revealed that epirubicin plus oxaliplatin and 5-fluorouracil (5-FU) (EOF) regimen could improve the response rate and prolong survival in patients with AGC. This study was to evaluate the efficacy and toxicity of EOF regimen as first-line chemotherapy for AGC patients. METHODS Fifty-two patients with pathologically confirmed AGC were entered into the study. On day 1, patients were intravenously injected with 50 mg/m(2) epirubicin, infused with 85 mg/m(2) oxaliplatin over 2 h, infused with 400 mg/m(2) calcium folinate (CF) over 2 h, followed by a 46-h infusion of 5-FU at 2600 mg/m(2). The cycle was repeated every three weeks. Treatment efficacy was evaluated every two cycles based on the RECIST standard. All patients received at least two cycles of therapy. RESULTS Patients received a total of 220 cycles of treatment, and all were evaluable for efficacy and toxicity. The overall response rate was 46.15%. Three cases (5.77%) achieved complete response (CR), 21 (40.38%) achieved partial response (PR), 18 (34.62%) had stable disease (SD), and 10 had progression disease (PD). The median time to progression (TTP) was 6.5 months and the median survival time (MST) was 9.8 months. Hematologic toxicities included 14 cases (26.92%) of grades 3-4 neutropenia, two of which were accompanied with fever, and four cases of grade 3 thrombocytopenia. The main non-hematologic toxicities included six cases of grade 3 nausea and vomiting (11.54%), and 28 cases of grades 1-3 neurotoxicity (53.84%). No treatment related deaths occurred. CONCLUSION EOF regimen is effective and well tolerated as first-line chemotherapy for AGC patients.
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Affiliation(s)
- Jian-Guo Zhao
- Department of Oncology, Shaoxing People's Hospital, Shaoxing, Zhejiang, PR China
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Zhao JG, Cao CH, Liu CZ, Han BJ, Zhang J, Li ZG, Yu T, Wang XH, Zhao H, Xu ZH. Effect of acupuncture treatment on spastic states of stroke patients. J Neurol Sci 2009; 276:143-7. [DOI: 10.1016/j.jns.2008.09.018] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2008] [Revised: 09/15/2008] [Accepted: 09/16/2008] [Indexed: 10/21/2022]
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Shao YS, Peng KQ, Zhang YT, Wu WL, Zhao JG. Histologic detection and significance of distant occult peritoneal metastasis of gastric carcinoma. Shijie Huaren Xiaohua Zazhi 2008; 16:862-868. [DOI: 10.11569/wcjd.v16.i8.862] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
AIM: To analyze the incidence rate and relative factors of distant occult peritoneal metastasis (DOMP) of gastric carcinoma as well as their influences on prognosis.
METHODS: Fifty-eight patients with gastric carcinoma undergoing radical surgery in our hospital from January 2002 to December 2003 were selected, and distant metastasis was not found by preoperative imaging examination and routine intraoperative physical exploration. Before closing abdomen in operation, two slices of peritoneum from each side of Tau's cavity were cut for HE and cytokeratin immunohistochemical staining. The gender, age of patients, tumor location, size, invasion depth, differentiation degree, Laurén classification and lymph lode metastasis were compared between the DOPM and non-DOMP cases. Logistic multivariable regression analysis was used to distinguish whether the above variables are independent relative factors for DOMP.
RESULTS: Among the 58 cases, there were 12 cases with DOMP, accounting for 20.7%. Single factor analysis showed that DOMP is associated with the gender of patients, tumor size, invasion depth, Laurén classification (diffusing class) and lymph node metastasis, but had nothing to do with the age patients, tumor location and differentiation degree. Logistic multivariable regression analysis showed that the independent relative factors of DOMP were Laurén classification (diffusing class) and tumor size, but not the gender, age of patients, tumor location, invasion depth, differentiation degree and lymph node metastasis. Among 58 cases, the 5-year survival rate of patients was 100% in stageⅠ and Ⅱ, 94.1% in stage Ⅲ and 24.7% in stage Ⅳ (P < 0.001). The 5-year survival rate of DOMP patients was 30.3%, which was similar to that of the stage-N3 patients (22.1%), but significantly different from that of the stage-Ⅲ patients (P < 0.001).
CONCLUSION: DOMP occurs frequently in gastric carcinoma, so routine detection for DOMP should be applied to in patients with advanced gastric carcinoma and diffusing classification (Laurén classification).
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Yang XY, Zhao JG, Li H, Liu HF, Huang Y, Huang SZ, Zeng F, Zeng YT. Effect of individual heifer oocyte donors on cloned embryo development in vitro. Anim Reprod Sci 2008; 104:28-37. [PMID: 17350188 DOI: 10.1016/j.anireprosci.2007.01.017] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2006] [Revised: 01/12/2007] [Accepted: 01/17/2007] [Indexed: 10/23/2022]
Abstract
The aim of this study was to determine the effect of individual oocyte donors on cloned embryo development in vitro. Five Holstein heifers of varied genetic origins were subject to ovum pick up (OPU) once weekly. In total, 913 oocytes were recovered from 1304 follicles. A mean of 7.7+/-0.4 oocytes was recovered per session per animal. Individual mean oocyte production varied significantly in quantity but not in quality (morphological categories) among heifers. Oocytes from individual heifers were used as recipient cytoplasm for somatic cell nuclear transfer (SCNT). Cumulus cells, collected from a single Holstein cow genetically unrelated to the oocyte donor, were used as donor cells. Although the percentage of reconstructed embryos that started to cleave was nearly constant, the percentage of cleaved embryos that developed into blastocysts showed clear individual heifer variation (61%, 51%, 31%, 28% and 24%, respectively), with a mean of 38% showing blastocyst formation. In vitro fertilization (IVF) was also conducted with oocyte from the same heifers used in SCNT. A variation of blastocyst production among individual heifers was also shown in the IVF experiment, but the rank of oocyte donor based on the blastocyst rate was changed. In conclusion, individual oocyte donor may have an effect on cloned embryo development in vitro, which differed from the effect on IVF embryos.
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Affiliation(s)
- Xiao-Yu Yang
- Shanghai Institute of Medical Genetics, Shanghai Children's Hospital, Shanghai Jiao Tong University, School of Medicine, Shanghai 20040, China
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Zhou WY, Zhao JG, Han YY, Hong Z, Gao Y. [Clinical study of acupuncture and moxibustion for preventing nosocomial infection in the patient with acute cerebrovascular disease]. Zhongguo Zhen Jiu 2008; 28:91-94. [PMID: 18405149] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
OBJECTIVE To observe the effect of acupuncture and moxibustion for preventing nosocomial infection in the patient with acute cerebrovascular disease. METHODS One hundred cases of acute cerebrovascular disease were randomly divided into a control group and an observation group, 50 cases in each group. The control group were treated by routine therapeutic method without any method for preventing nosocomial infection; the observation group were treated by the routine treatment, with acupuncture and moxibustion added at Guanyuan (GV 4) and Zusanli (ST 36), once daily, for 10 days. The nosocomial infection rate and the abnormal rates of body temperature, WBC and neutrophil were investigated in the two groups. RESULTS The nosocomial infection rate was 8.0% in the observation group and 26.0% in the control group with a significant difference between the two groups (P < 0.05), and the abnormal rates of body temperature, WBC and neutrophil in the observation group were significantly lower than those in the control group (all P < 0.05). CONCLUSION Acupuncture and moxibustion can effectively prevent nosocomial infection for the patient with acute cerebrovascular disease. The mechanism possibly is related with regulative action of acupuncture and moxibustion on immunity.
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Affiliation(s)
- Wen-Yan Zhou
- Department of general internal medicine, First Affiliated Hospital, Tianjin University of TCM, Tianjin, China.
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Denner L, Bodenburg Y, Zhao JG, Howe M, Cappo J, Tilton RG, Copland JA, Forraz N, McGuckin C, Urban R. Directed engineering of umbilical cord blood stem cells to produce C-peptide and insulin. Cell Prolif 2007; 40:367-80. [PMID: 17531081 PMCID: PMC6496474 DOI: 10.1111/j.1365-2184.2007.00439.x] [Citation(s) in RCA: 58] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
Abstract
OBJECTIVES In this study, we investigated the potential of umbilical cord blood stem cell lineages to produce C-peptide and insulin. MATERIALS AND METHODS Lineage negative, CD133+ and CD34+ cells were analyzed by flow cytometry to assess expression of cell division antigens. These lineages were expanded in culture and subjected to an established protocol to differentiate mouse embryonic stem cells (ESCs) toward the pancreatic phenotype. Phase contrast and fluorescence immunocytochemistry were used to characterize differentiation markers with particular emphasis on insulin and C-peptide. RESULTS All 3 lineages expressed SSEA-4, a marker previously reported to be restricted to the ESC compartment. Phase contrast microscopy showed all three lineages recapitulated the treatment-dependent morphological changes of ESCs as well as the temporally restricted expression of nestin and vimentin during differentiation. After engineering, each isolate contained both C-peptide and insulin, a result also obtained following a much shorter protocol for ESCs. CONCLUSIONS Since C-peptide can only be derived from de novo synthesis and processing of pre-proinsulin mRNA and protein, we conclude that these results are the first demonstration that human umbilical cord blood-derived stem cells can be engineered to engage in de novo synthesis of insulin.
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Affiliation(s)
- L Denner
- Stark Diabetes Center and McCoy Diabetes Mass Spectrometry Research Laboratory, Department of Internal Medicine, University of Texas Medical Branch, Galveston, TX 77555-1060, USA.
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Zhao JG, Li H, Wang YX, Meng H. The Expression Characterization of Chicken Uncoupling Protein Gene. Asian Australas J Anim Sci 2005. [DOI: 10.5713/ajas.2005.1552] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Yang XY, Zhao JG, Li HW, Li H, Liu HF, Huang SZ, Zeng YT. Improving in vitro development of cloned bovine embryos with hybrid (Holstein–Chinese Yellow) recipient oocytes recovered by ovum pick up. Theriogenology 2005; 64:1263-72. [PMID: 16139603 DOI: 10.1016/j.theriogenology.2004.11.026] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2004] [Accepted: 11/11/2004] [Indexed: 11/19/2022]
Abstract
In the present study, oocytes from F1 hybrid cattle, as well as their parental lines, were recovered by ovum pick up (OPU) and used as recipient cytoplasm for somatic cell nuclear transfer (SCNT). Four F1 hybrid (Holstein dam x Chinese Yellow sire), 10 Holstein and four Chinese Yellow cattle were subjected to OPU once weekly. There were no significant differences among breeds for number of recovered oocytes per session (overall average, 7.8+/-0.5; mean+/-S.E.M.), quality of the recovered oocytes, or oocyte maturation rate (72-73%). Matured oocytes were all used as recipient cytoplasm (without selection) and a single batch of cumulus cells collected from a Holstein cow were used as donor cells. Although reconstructed embryos initiated cleavage sooner when the recipient cytoplasm was from hybrid cattle versus the two parental breeds, the overall cleavage rate was indistinguishable among breeds. At Day 8, the blastocyst rate from the cleaved embryos (51% versus 37% and 27%), the total number of cells per blastocyst (135+/-4.1 versus 116+/-3.6 and 101+/-4.2), and the percentage of Grade-A (excellent quality) blastocysts (54% versus 42% and 29%) in the hybrid group were all higher than that of Holstein and Yellow groups. Furthermore, the proportion of blastocysts obtained at Day 7 (as a percentage of the total number of blastocysts) was greater in the hybrid group than in Holstein and Yellow groups (89% versus 71% and 63%). In conclusion, the use of F1 hybrid oocytes as recipient cytoplasm significantly improved in vitro development of cloned bovine embryos relative to oocytes derived from the parental lines.
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Affiliation(s)
- Xiao-Yu Yang
- Shanghai Institute of Medical Genetics, Shanghai Children's Hospital, Shanghai Jiao Tong University, Shanghai 20040, PR China
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Meng H, Li H, Zhao JG, Gu ZL. Differential expression of peroxisome proliferator-activated receptors alpha and gamma gene in various chicken tissues. Domest Anim Endocrinol 2005; 28:105-10. [PMID: 15620810 DOI: 10.1016/j.domaniend.2004.05.003] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/29/2004] [Accepted: 05/14/2004] [Indexed: 12/16/2022]
Abstract
The peroxisome proliferator-activated receptors (PPARs) are the members of superfamily of nuclear hormone receptors. A great number of studies in rodent and human have shown that PPARs were involved in the lipids metabolism. The goal of the current study was to investigate the expression pattern of PPAR genes in various tissues of chicken. The tissue samples (heart, liver, spleen, lung, kidney, stomach, intestine, brain, breast muscle and adipose) were collected from six Arber Acres broilers (8 weeks old, male and female birds are half and half). Semi-quantitative RT-PCR and Northern blot were used to characterize the expression of PPAR-alpha and PPAR-gamma genes in the above tissues. By semi-quantitative RT-PCR, the results showed the expression level of PPAR-alpha gene was higher in brain, lung, kidney, heart and intestine, medium in stomach, liver and adipose than in spleen, and it did not express in breast muscle. The expression level of PPAR-gamma gene was higher in adipose, medium in brain and kidney than in spleen, heart, lung, stomach and intestine, but it did not express in liver and breast muscle. Northern blot results showed that PPAR-alpha gene expressed in heart, liver, kidney and stomach, and the intensity of hybridization signal was the stronger in liver and kidney than in other tissues, however, PPAR-gamma gene only expressed in adipose and kidney tissues. The results of this study showed the profile of PPAR gene expression in the chicken was similar to that in rodent, human and pig. However the expression profile of chicken also have its own specific trait, i.e. compared with mammals, PPAR-alpha gene can not be detected in skeletal muscle and PPAR-gamma gene can be stronger expressed in kidney tissues. This work will provide some basic data for the PPAR genes expression and lipids metabolism of birds.
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Affiliation(s)
- H Meng
- School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai 201101, PR China
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Wang Y, Li H, Gu ZL, Zhao JG, Wang QG, Wang YX. [Correlation analysis between single nucleotide polymorphism of the leptin receptor intron 8 and fatness traits in chickens]. Yi Chuan Xue Bao 2004; 31:265-9. [PMID: 15195565] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/29/2023]
Abstract
Leptin receptor plays an important role in leptin functioning signal transduction and it may have direct effects on the deposition of adipose tissues and the body weight, the leptin receptor (OBR) gene, therefore, can be considered as a candidate gene in the study of fat deposition of the chicken. The function of OBR gene has been intensively studied in mammals, but study of OBR gene in the chicken is still rare. In this paper, the NEAU divergent selection broiler lines for abdominal fat were used. Body weight and fatness traits were measured in the sixth generation broiler population of the two lines at 7 week of age. Two pairs of primers for intron 8 of OBR gene were designed according to the database of chicken genomic sequence (Accession No. AF222783). The SNP was detected by DNA sequencing, and PCR-SSCP method was then developed to screen the population. The correlation analysis between the polymorphisms of the intron 8 of OBR gene and growth and fatness traits in the population was carried out using the appropriate statistical model. Two SNPs were found in the population. Those were T500C and G659A. The least square analysis showed that BB genotype birds had significant higher (P < 0.05) abdominal fat weight and percentage of abdominal fat than AA and AB genotype birds, and AA genotype birds had significant lower (P < 0.05) weights of livers than AB and BB genotype birds at the same time. From these results we can putatively drew the conclusion that OBR gene may be a major gene to affect the fatness traits or linked to the major gene, and the two polymorphisms found in OBR gene intron 8 region could be used to select the chicken for low abdominal fat in molecular marker-assisted selection programs.
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Affiliation(s)
- Ying Wang
- College of Animal Science and Technology, Northeast Agricultural University, Harbin 150030, China
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